Abstract
Abstract The disintegration characteristics of 164m Ho and 164g Ho have been studied using a high-resolution Ge(Li) spectrometer. Radioactive samples of 164m Ho and 164g Ho were obtained through the (n, 2n) reaction on spectroscopically pure holmium oxide with 14 MeV neutrons. The isomeric cross-section ratio for the yields of the ground and metastable states has been estimated to be 1.0±0.25. Gamma rays of 37.7 and 56.1 keV energy have been assigned to the decay of 164m Ho and 73.4 and 91.5 keV γ-rays are attributed to the decay of 164g Ho by electron capture and negaton emission, respectively. The branching ratio for the electron capture decay of 164g Ho to the levels in 164 Dy has been estimated accurately from the analysis of X-ray intensities. The results have been incorporated into a decay scheme.
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